Passive Foreign Investment Company (PFIC) Rules

If you are a US shareholder of your business, but the other non-US owners own the majority of the

company, it may not be a CFC. Instead, you need to look at the Passive Foreign Investment Company or PFIC rules.


The PFIC rules recognise that you do not have control over the non-US company. A PFIC could be anything from a company where you and other Americans own up to 50% but do not have control in a private business, or where you own one stock in a non-US investment that you have made.


Broadly a PFIC is a non-US company which meets either of the following:

  1. Income Test: at least 75% of the company’s gross income is passive income
  2. Asset Test: at least 50% of the company’s gross assets are passive assets

For entrepreneurs, most of the time, the company will initially be an active trade and not necessarily a PFIC. However, as circumstances change so might the status as a PFIC. For example, if investments are realised by the company or the value of some passive assets increases. PFIC status needs to be monitored because Once a PFIC, always a PFIC.


In particular, this can be an issue for companies with large amounts of retained earnings, or where they may have accepted assets, such as shares or cryptocurrency, during the course of its business.


The reason PFICs are bad for US tax is that on the sale of the shares, rather than qualifying for long-term capital gains tax in the US at 20%, instead you will be taxed at the ordinary income tax rate. In addition, there is also an interest charge which relates to the period that you have owned the PFIC.


Therefore, if a company was owned for five years, where the PFIC test was met, the IRS considers the gain made to be spread over those five years and any tax associated with that gain has a compounded interest charge put on it. For longer holding periods, it can result in taxation of up to 100% in extreme circumstances. Clearly this is incredibly inefficient for tax. Therefore, it is important that advice is sought from ahead of any investment to ascertain whether it is a PFIC or if a private investment which is not a PFIC currently, that this status is monitored as it is important that this does not occur.

What should you do next?


Entrepreneurs whose businesses are neither CFCs nor PFICs are likely to be taxed in the usual manner, on dividends or capital gains. You can take steps to avoid double taxation through planning your UK tax payments where appropriate.


If you would like to discuss any of the above and how it relates to your business, please get in touch with your usual Blick Rothenberg contact or Alex or Michael using the form below.

Our expert team

US/UK Private Client

Personal tax is one of the most complex areas of wealth management and can significantly erode your wealth over time.

Blick Rothenberg is considered to be market leaders in the taxation of non-UK domiciled individuals and offshore trusts, as well as cross-border personal taxation.

We have a strong base of clients in the UK and a broad and longstanding international focus too, acting for a large number of non-UK domiciled individuals and international families. So, we understand the complexities that US citizens face when living, working and operating businesses in the UK.

Whether you are a start-up entrepreneur, a wealthy family with complex affairs, or a business executive, our dual-qualified team of tax advisers will look after your US UK personal tax affairs as well as those of your business.

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